In the battle for supremacy among the region’s high school boys lacrosse teams, the only true measuring stick is San Diego Section championships. For the time being, Torrey Pines is king of the mountain.

The top-seeded Falcons, playing at home, beat No. 2 La Costa Canyon 7-5 on Saturday to win the section’s first Open Division championship, their sixth section title in the 12 years lacrosse has been a sanctioned sport. LCC, which upended Torrey Pines in last year’s Division I final, has five.

“It feels great. It really stung to lose in the championship last year,” Falcons coach Jono Zissi said. “We had a good game plan tonight. We limited their transition, and we were pretty precise with our offense.”

Torrey Pines (17-3) led by a goal at halftime and opened a 7-3 lead by the end of the third quarter.